Abstract: A fabric incorporating flattened filaments for use as a support fabric in producing a nonwoven product by a hydroentangling process, and a hydroentangling method employing such a fabric.

Abstract: A method of controlling the easing motion (1) of a loom executes a position control operation and a tension control operation successively in one weaving cycle of the loom. The position of an easing roller (6) included in the easing motion (1) is measured in a position control period, a correction is determined according to the deviation of the measured position of the easing roller (6) from a desired roller position, and a controlled variable is corrected by using the correction to make the actual position of the easing roller (6) approach the desired roller position.

Abstract: An apparatus for controlling a let-off motion in a loom having a let-off motion motor includes a tension detector for detecting a warp tension to produce a tension correction signal, a control unit responsive to the tension correction signal for producing a speed signal, a driving amplifier for controlling the let-off motion motor in response to the speed signal, a warp coil diameter detector for issuing a warp coil diameter correction signal inversely proportional to the diameter of a warp coil on a beam to the driving amplifier, and a normal-reverse rotation control unit responsive to the warp coil diameter correction signal for selectively applying prescribed normal- and reverse-rotation signals dependent on a rotation command to the driving amplifier. With this arrangement, the motor is rotated at a desired constant speed for feeding out or rewinding the warp yarn for a desired length irrespectively of the warp coil diameter.

Abstract: A loom has a winding system comprising a tension roller and a storage roller connected by means of an endless chain whereby the storage roller is driven by the tension roller with the interposition of a friction mechanism.A follower roller, in contact with the periphery of the roll of fabric wound around the storage roller, causes a rotary cam to rotate such that the movement of the latter is linked with the variation in diameter of the roll of fabric. Bearing against the profile of the cam is one end of an oscillating lever, the other end of which acts on the friction mechanism in order to modify the driving torque of the storage roller by the chain according to the diameter of the roll of fabric.The fabric tension regulating device can be applied to conventional looms and shuttleless looms.

Abstract: In order to keep the tensions applied to the warp yarns within a predetermined range throughout the weaving operation of the loom, an improved warp tension control mechanism is herein proposed which generally comprises a length regulating mechanism for regulating the length of the warp yarns fed from a yarn beam per unit time, a tension lever for applying tensions to the warp yarns by the aid of biasing mechanism, and a tension reducing mechanism which is operative to lessen the biasing force produced by the biasing mechanism thereby to reduce the tensions in the warp yarns in response to the continuous reduction of the outside diameter of the body of the warp yarns wound on the beam.

Abstract: In a control mechanism for automatically operating a warp beam in a loom, a comparison regulator is associated with a thread guide roller over which the warp passes and the regulator, through a cam arrangement, operates micro-switches for controlling the operation of an electric motor. The electric motor drives the warp beam through the medium of a variator. Further, an automatic zero setting is associated with the warp beam and operates in cooperation with the variator.